Paper carriage for typewriting machines



March 11, 1930. sc m 1,750,363

PAPER CARR IAGE FOR TYPEWRITING MACHINES Filed Jan. 15, 1929 Unveptom fwfw Patented Mar. 1 1, 1930 UNITED STATES PATENT OFFICE,

MAX SCHMID, OF NUREMBERG, GERMANY PAPER CARRIAGE FOB TYPEVBITING MACHINES Application filed January 15, 1929, Serial No. 332,647, and in Germany April 13, 1928.

This invention relates to a construction of the paper-carriage of such type-writing machines, in which the printing of the types is produced by the platen striking against the 5 types, and it has for its object to considerably simplify and consequently make cheaper'the manufacturing of the carriage.

T isis obtained according to the invention essenti ally by making the casing of the platen Q slide on transverse rods of a supporting frame extending through the side walls of the casing, said supporting frame being guided on rods arranged transversely to the axis of the'platen and fixed on the machine frame said supportv being shiftable in forwar and backward direction. 1

An embodiment of the invention is illustrated by way of example in theaccompanying drawing in which:

Fig. 1 is a vertical cross section on line 11 of Fig. 2 and t Fig. 2 a front elevation, partly in section "on line 2--2 of Fig. 1.

Behind the type carrier b rotatable around a vertical axle a the platen-c is arranged in such a manner that it is adjustable in vertical direction by means of its axle e engaging with longitudinal slots fin the two end walls cl. Through the end walls at of the casing of the platen extend two transverse rods (7 which are fixed on the upwardly bent flaps he of a carrying bar 2' of U-shaped cross section. In downwardly directed longitudinal flanges are located, which are fixed in the vertical standards 11., 0 of thetypewriting machine so the the paper carriage can be shifted in a simple manner forward and backward on'the 40 rods l, m but shifted in lateral directions on the guide rods g.

According to the invention the arrangement is such that the guide rods "serving for the lateral shifting are utilized directly for the secure insertion and catching of the paper sheet as on theseguide rods, between the end walls 03 of the platen carriage, brass sleeves p 7 are loosely mounted so that they can rotate and be shifted in axial direction when the car riagc is being shifted.

rolls g.

k of this carrying bar 2' two carrying rods Z, 412.

On these brass sleeves p fluted rubber rollsg are mounted. A positive pressing of the carriage against the rubber sleeves, ensuring the catching of the paper sheet, is obtained thereby that the paper holder 8 controlled by a springm and which carries on a continuous axle t rubber rolls u, .presses against the platen 0, whereby this platen is pressed against the guide In order to obtain the guide faces necessary for the paper sheet to be inserted behind the platen, tongues 'v and w are stamped out of the bottom plate and back wall of the carriage and bent upwards and forwards re- 05 spectively so that their ends are directed towards-the platen.

In this manner the manufacturing of the guide of the carria e and of the laten is considerably simpli ed without PI'GJllCllCG to the durability and to the security of the service.

I claim 1. A carriage for type-writing machines in which the printing of the types is produced by the platen striking against the stationary types, comprising in combination with the machine frame and the platen,a casing for the platen having end walls, a supporting frame for said casing, transverse rods mounted in the end walls of said supporting frame said casing being shiftable on these transverse rods, and rods transversely to the axle of the platen extending through the long walls of said supporting frame so that said frame can 35 be shifted on said latter rods.

2. A carriage for type-writing machines in which the printing of the types is produced by the platen striking against the stationary types, comprising in combination with the machine frame and the platen, a casing for the platen having end walls having vertical slots guiding the axle of said platen,

a supporting frame for said casing, transverse rods mounted in the end walls of said supporting frame said casing being shiftable on these transverse rods, brass sleeves loosely mounted on said transverse rods and situated between the end walls of said casing, rubber rolls on said brass sleeves, rods transverse to the axle of the platen extendin through the lon walls of said supporting rame so that sai frame can be shifted on said latter rods, and a spring controlled paper holder by which said platen is positively pressed against said rubber rolls.

3. In a carriage for type-writing machines, as claimed in claim 1, in combination with the platen and a casing for said platen tongues stamped out of the bottom plate and back plate of said casing and curved at the end to serve as guide faces for the insertion of the paper sheet.

In testimony whereof I aifix my signature.

MAX SCHMID. 

